Strainer device.



R. K. JACK.

STRAINER DEVICE.-

APPLICATION FILED AUG-8, 191s.

Patented Mar. 27, 1917.

ing at Nutley,

- of the invention, such skilled in the art to which it appertains to toprovide a novel strainer ROBERT E. JACK, or NUTLEY, NEW JERSEY.

STRAINER DEVICE.

Specification of Letters Patent.

Application filed August 8, 1916. Serial No. 113,888.

To all whom it may concern:

, Be it known that I, RoBER'r K. JACK, a subject of the K' g of GreatBritain, residin the county of Essex and State of New Jersey, haveinvented certain new a'nd usefulImprovements in Strainer Devices; and Ido hereby declare the following to be a full, clear, and exactdescription as will enable others make and use the same, reference beinghad to the accompanying drawings, and to characters of reference markedthereon, which form a part of this specification.

present invention relates, generally, to improvements in strainerdevices, and the invention hasreference, more particularly, to animproved construction of oil-strainer and automatic closing valvetherefor.

The present invention has for its principal object to provide anoil-strainer for use in connection with the crank-casings of internalcombustion engines, and for such other uses as maybe served thereby.

The said invention has for a further object device which is readilyaccessible for cleansing purposes,

and which provides a novel construction and arrangement ofself closingvalve which automatically shuts off access to the strainer chamber ofthe oil or other substance, nor mally passing therethrough, when thechamberis opened to remove the strainer element for the cleansing of thesame and for cleansing the interior of the said strainer chamber. Thesaid invention has for a still further object the provision of a noveland highly efficient construction of strainer element and mclosingstrainer chamber for supporting the'same.

Other objects of the present invention, not at this time more vWith thevarious objects of my present invention in view the same consists,primarily, in the novel construction of strainer devlce' hereinafter setforth,.and the inventlon consists, furthermore, in the novelarrangements andcombinations of the various defollowing specification,and then finally em-' bodied in the claims which are appended toparticularly enumerated,- will be clearly understood from thefollowingdetailed description of the same.

"a cylindrical chamber or hollow and which form an essential part of thesaid specification.

The invention is clearly illustrated inthe accompanying drawings, inwhich igure 1 is a vertical longitudinal section of the novel strainerdevice, made according to and embodying the principles of my presentinvention.

Fig. 2 is a top or plan view of the same; Fig. 3 is a horizontal sectionof the same taken on line 33, looking downward; and Fig. 4 is anotherhorizontal section of the same, taken on line 44, looking downward.

Similar characters of reference are employed in all of the hereinabovedescribed views, to indicate corresponding parts.

eferring now to the said drawings the reference character 1 indicates aportion of the lower part or bottom of the crank-casing of an internalcombustion engine, with which I have illustrated my novel constructionof strainer device, as positioned to receive and strain the lubricatingoil collecting in such crank-casing, before returning the same to thelubricating circulation system of such internal combustion engine.

While I have illustrated my novel construction of strainer'device, asthe same is adapted for use with internal combustion engines, it must beunderstood that I do not limit my strainer device to such use, since itwill be clearly apparent that it may be applied to other machines ordevices, and to many other uses, wherein astraining or filteringoperation is desired.

s shown in said drawing my novel strainer device is cast integrally withthe said crank-casing, but it will be understood that the same may forma separate and complete device in itself, which may be associated withor secured to said crank-casing 1, or to other mechanisms, in anywaydesired, or which would commend itself to the mechanical conditionsinvolved.

The said novel strainer device comprises main body 2, connected with thebottom of easing 1 so as to extend therethrough to provide an outwardlyand downwardly projecting open on -portion 3 beneath saidcrank-casing 1. Said cylindrical chamber or hollow main body 2 isprovided, adjacent to the lower interior level of said crank-casing 1with annularly enlarged portion 4 providing an interior annular chamber5 in com- 110 Patented Mar. 27, 1917'.

said crank-' munication with the interior of said cylindrical chamber orhollow main body 2. Connected with said annularly enlarged portion 4, soas to extend outwardly therefrom and through the crank-casing 1 so as toproject exteriorly therefrom, is a 6 providing a discharge conduit 7 incommunication with said annular chamber 5.

The upper end of said cylindrical chamber or hollow main body 2 is alsoopen, and is provided, just within its open end with an interiorlydisposed annular rib 8, upon the upper marginal edge of which is formeda chamfered ground valve-seat 9.

The reference character 10 indicates a valve-disk adapted, under properconditions, to seat itself upon said valve-seat 9 and thus close theupper open end of said cylindrical chamber or hollow main body 2.Connected with the under-side of said valve-disk 10 is a centrallydisposed downwardly projecting stud 11, and connected with the upperside of said valve-disk 10 is a centrally disposed upwardly extendingvalve-stem 12.

Secured to the upper end of said cylindrical chamber or hollow main body2, by means of screws 13, or any other suitable fastening means, is aspider-member 14, the radiating-arms 15 of which support a centrallylocated bearing portion 16, in which said valve-stem 12 is slidablydisposed to guide the vertical movements disk 10. The marginal edge ofsaid upper open end of said cylindrical chamber or hollow main body 2 iscut away at intervals above said valve-seat 9, to provide lateralpassages 17 through which oil, or other substance to be strained maypass beneath said valve-disk 10, when the latter is raised, and thenceinto the interior of said cylindrical chamber or hollow main body 2.

The reference character 18 indicates a hollow cylindrical strainer-cup,which is closed at its bottom end by a bottom-wall 19, but which is openat its upper end to the passage thereinto of oil, or other substance tobe strained. The sides of said strainer-cup 18 are provided withsuitably disposed out let openings 20 which are adapted to communicate-with said annular chamber 5 when said strainer-cup is securedin operative position within said hollow main body 2. Connected withsaid bottom-wall 19, so as to extend centrally and upwardly through theinterior of said strainer-cup 18, is a liftfinger 21, which normallyabuts against the end-of said stud 11 of said valve-disk 10. Saidstrainer-cup 18 is adapted to be inserted within the lower open end ofsaid cylindrical chamber or hollow main body 2 so as to telescopeupwardly thereinto, and the lower closed end of said strainer-cup isprovided with a peripheral flange 22, upon which is seated a suitablepacking-ri g 23. When said strainer-cup is inserted within pipe-memberof said valvesaid cylindrical chamber or hollow main body 2, said flange22 engages the lower end of the latter, forcing its packingrring 23 intointimate contact therewith so that the joint is rendered leak proof.Connected with the under side of the bottom-wall 19 of said strainer-cup18, in a central location, is a downwardly extending lug or pin 24.strainer-cup is provided with a strainer-element 25 of invertedcup-shape which is inserted within the interior of said strainercup sothat its side walls hug closely the side walls of the latter, and thusextend over said outlet openings 20. The top portion or wall 26 of saidstrainer-element 25 extends over, so as to close with its body, theupper open end of said strainer-cup. Said top portion or wall 26 of saidstrainerelement 25 is provided with a centrally disposed opening throughwhich extends or projects the upper end of said lift-finger 21, saidopening being preferably provided with a marginal binding ring 27 of anysuitable material.

The means for retaining said strainercup 18, in its normal operativeposition within said cylindrical chamber or hollow main body 2,comprises a pivoted lock-bar 28, which is pivoted at one end upon apintle 29 supported by suitable pintle-lugs 30 connected with said crankcasing 1. Said lock-bar 28 is provided with a suitably located hole oropening 31, which embraces said lug or pin 24 of said strainer-cup 18,when said lock-bar is swung up against the bottom of the latter intonormal holding position relative thereto. The free end of said lock-baris bifurcated to provide a slot 32 which is adapted to embrace a pivotedscrew-threaded lock-bolt 33. Said lock-bolt 33 is pivoted upon a pintle34 supported by suitable pintle-lugs 35 connected with saidcrankcasing 1. Screwing upon said pivoted lockbolt is a winged-nut 36which, when the lockbar has been properly associated with saidlock-bolt, is screwed up on the latter into engagement with the formerto hold the same in its retaining or looking relation to saidstrainer-cup 18.

When the said strainer-cup 18 is placed within said cylindrical chamberor hollow main body 2, and pushed up therein into its normal'operativeposition, its lift-finger 21 engages the stud 11 of said valve-disk 10and lifts the latter up and away from its valveseat 9, thus permittingthe oil collected in said crank-casing 1 to flow into the hollow mainbody 2 through its upper opening and the lateral passages 17 Havingthusentered said hollow main body 2 the oil descends upon the topportion or wall 26 of the strainer element 25 and passes therethroughinto the interior of the strainer-cup 18, being strained or filteredduring such passage. From the interior of said strainer-cup 18 the Saidoil flows outwardly, through-the side walls of said strainer-element525, and thence through the outlet o 201M said strainer-cup 18 into 'saiannular chamber 5, thereby undergoing-.a' second or further straimngoperation.-- The oil flows from said annular chamber 5' into saidconduit 7, and

from' such point may be pumped back into the circula'tmg lubricatingsystem of an internal; combustion engine, --of which said crank'casingforms a art, It will thus be apparent that theoil is thoroughlyfiltered or 1st'rained, when passed through my novel strainer device,and foreign particles or grains of dirt and similar undesirablecontents, readily and efliciently removed therefrom If the strainerelement becomes choked up and is in need ofcleansing, or if it isdesirable to remove .thefsame from said hollow main body 2 for any otherpurpose, the

lock-bar 28 is unfastened and swung down- 1 'wardly away from the"bottom of said from the studll of said valve disk 10, consestrainer-cup18, so that the latter can be 25/ withdrawn and the strainer-element 25removed therefrom, so that both said parts 4 may be cleansed, or a newstrainer element substituted for the old. As the strainer-cup, 18'isremoved from the hollow main body 2, the support of its lift-finger 21is removed 1 quentlyv the latter drops. upon its valve-seat 9, and thuscloses the interior of said hollow main body 2 to the further access ofthe oil remaining in the crank-casing 1, so that there is no'loss ofoil, nor is it necessary to drain the'crank-casing 1 thereof, when it isdesired. to cleanse or'otherwise attend to the strainer deviceg-It willthus be apparent that my invention provides a very simple intake valvewhich operates automatically to shut off access of oil to the chambercontaining the strainer devices when it is desired to cleanse or renewthe latter.-

I amaware thatsome changes may be made in the several arrangements andcombinatlons of the various devices and parts of my present invention,as well as in thedetails of the construction of out departing from thesco invention as set forth in the fication, and as defined in the claimsappended thereto; ,Hence, I do not limit my present invention to theexact arrangements and combinations of the various parts as the same,withe of the said oregoing specidescribed in the foregoingspecification, nor

do I confine myself to theexact details of the construction of the saidparts as illustrated in the accompanying drawings.

I claim 1. In a device of the kind described, a

hollow body open at its opposite ends, a strainer-cup adapted to beinserted within cup, a closing valve connected with the upper end 'ofsaid hollow-body, means connected with said strainer-cup for openingsaid valve when the former s in operative position, a conduit meansleadingfrom the interior of said hollow body access to which is obtainedthrough said strainer-elements, and means for securing said strainer-cupin operative relation to said hollow bod 2. In a device of the kinddescrlbed, a hollow body 0 en at its opposite ends, a strainer-cup aapted to be nserted within the lower" end of said hollow body, astrainer-element supported by said strainercup, a closing valveconnected with the upper end of said hollow-body, means connected withsaid strainer-cup for opening said valve when the formeris in operativeposition, a. conduit means leading from the interior of said hollow bodyaccess to which is obtained through said strainer-elements, means for.securing said strainer-cu in operative relation to said hollow bo y,comprising a pivoted lock-bar adapted to be swung across the under sideof said strainercup,aa pivoted lock-bolt, the free end of said lock-barbeing bifurcated to straddle said lock-bolt, and a lock-nut cotiperatingwith said lock-bar and said lock-bolt.

3. In a device of the kind described, a hollow bodyopen at its oppositeends, a strainer-cup adapted to be inserted within the lower end of saidhollow body, a strainer-element supported by said strainercup, avalve-seat located in the upper open end of said hollow body, avertically movable valve-disk having a valve-stem, means engaging said'valve-stem for guiding vertical movements of said valve-disk, aliftfinger connected with said strainer-cup adapted to engage saidvalve-disk to raise the same when said strainer-cup is in opera-' tiveposition, a conduit means leading from the interior of said hollow bodyaccess to which is obtained through said strainerelement, and means forsecuring said strainer-cup in operative relation to said hollow-body.

4. In a device of the kind described, a

said strainer-cu said hollow-b ber intermediate of its lower end,

adapted to telescope into the lower end of ber intermediate of lock-nutcooperating to -which isfiobtained through said strainer-element, andmeans for securing in operative relation to y, comprising a pivotedlock-bar adapted to be swung across the un der side of saidstrainer-cup, a pivoted lockbolt, the free end of said lock-bar beingbifurcated to straddle said lock-bolt, and a with said lock-bolt. 5. Ina device of;

opposite ends, an annular portion providing an annular chamthe ends ofsaid hollow body, a conduit means leading out of said annular-chamber, astrainer-cup 'closed at said strainer-cup being said hollow-body, theside walls of said strainer-cup having outlet openings adapted tocommunicate with said annular cham ers, a strainer-element contained insaid strainercup adapted to extend over said outlet openings thereof, aclosing valve connected with the upper end of said hollow bod meansconnected with said strainer-cup or opening said valvewhensaidstrainer-cup is in normal operative position, and means forsecuring said strainer-cup in operative relation to said hollow-body.

6. In a device'of the kind described, a hollow body open at its oppositeends, an annular portion provi ing an annular chamthe ends of saidhollow body, a conduit means leading out of said annular-chamber, astrainer-cup closed at its lower end, said strainer-cup being adapted totelescope into said hollow-body, the side walls of said strainer-cup haoutlet openings adapted to communicate w1th said annular chamber, astrainer-element contained in said strainer- .cup adapted to extend oversaid outlet openings thereof, a closing valve connected with the upperend of said hollow body, means connected with said strainer-cup foropening said valve when saidstrainer-cup is in normal operativeposition, and meansfor securing said strainer-cup in operative relationto said hollow-body, comprising a pivoted lock-bar adapted to be swungacross the under side of said strainer-cup, a pivoted lock-bolt, thefree end of said lock-bar being bifurcated to straddle said lock-bolt,and a lock-nut codperating with said lock bar and said lock-bolt.

7. In a device of the kind described, a hollow body open at itsoppositeends, an annular portion providing an annular chain ber intermediate ofthe ends of said hollow body, a conduit means leading out of saidannular chamber, a strainer-cup closed at adapted to telescope into thelower end of the kind described, a hollow body open at its a tocommunicate with the lower end of' said hollow-body, the side walls ofsaid strainer-cup having outlet openings adapted to communicate withsaid annular chamber,

a strainer-element adapted to extend over i the upper open end of saidstrainer-cup and downwardly over said outlet openings of the latter, avalve-seat located in the upper open end of said hollow-body, avertically movable valve-disk havin a valve stem, means connected withadapted, to engage said valve-stem for gui mg the vertical movements ofsaid valvedisk, a upwardly through the same and through saidstrainer-element into "lifting engagement with said valve-disk 'when'said strainer-cup is in normal operative position;

said hollow bod centrally disposed" lift-finger connected with saidstrainer-cup and extending within said hollow-bod and means; forsecuring said strainer-cup in operative rela-I tion to said hollow-body.

8. In adevice' of, he kind described, a

annular-chamber, a strainer-cup closed at its lower" end,- saidstrainer-cup "bemg adapted to telescope intorthe lower end of saidhollow-body, the side walls /of said strainer-'cuphavmg outlet openingsadapted a strainer element-"adapted to extend over the upper openendfofsaid strainer-cup and said annular chamber, .7

86 hollowbody open'at its opposite ends, an I downwardly over saidoutlet openings of the latter, a valve-seat located in nected with saidstrainer-cup and'extendmgupwardly through the same and through the upperopen end of said hollow-bod a. vertically said strainer-element intolifting engage ment with said valve-disk when said strainer-cup is innormal operative position within said hollow-body, and means forsecuring said strainer-cup in operative relation to said hollow-body,comprising a pivoted lock-bar adapted to be swung across the under side'of said strainer-cup, a

pivoted lock-bolt, the free end of said lockbolt, and a lock-nutcooperating with said lock-bar and said loolnbolt. I

In testimony that I claim the invention set forth above I have hereuntoset my hand this 4th day of August, 1916.

- ROBERT K. JACK. Witnesses: I

'Fminx. G. Fnannrzml,

being bifurcated to straddle said 10-

